Tractor



D. C. HEITSHU Juy' 23, 1935.

TRACTOR n Filed Feb. 16, 1955 Fra-.7

INVENTOR. DAN/ELC Hf/TsHu A TTORNEY -40 To crank' haft I3 a pltman n 1S connected its the tractor is traveling, but in circumstances Patented July 23,1935 l UNITED STATES PATENT oFFicEl 3,009,261 TRACTOR Daniel C. Heitshu, Racine, Wis., assignor to J. I. Case Company, Racine, Wis., a corporation Application February 16, 1935, Serial No. 6,855

4 Claims. (Cl. 9750`) My invention relates to tractors, and particuthat the trip-rod may be locked in xed posilarly to an 4improved motor lift adapted to be tion when the tractor is employed for purposes associated with and actuated by a power takenot requiring the actuation of the power lift.

. off shaft for raising and lowering tractor-mount- The trip-rod 22 passes through an expansion 5 ed implementsieither while the tractor is travelspring 26 confined between platform 5 and 9, 5

ing or in'stationary position, so long as the tracstop 21 substantially midway its length, and by tor engine is running, which device may be readunderlapping the platform the latter serves asily installed initially or when desired, and cona stop to limit the upward movement of the rod sists in certain details of construction and a'rand arm 2l attached thereto.

rangements of parts whereby a simply operated It will be understood that the lenergy of the 10 and eiective d-evice is provided, as will hereinpower take-off shaft, derived directly from the after more fully appear. engine of the tractor, actuates the pbwer lift In the accompanying drawing, forming part device to turn a half revolution whenthe triphereof, Figure 1 is a side elevation in part of a rod 2 2 is caused to pull downwardly on arm 2| tractor equipped with my improvement; Fig. 2, by momentarily depressing button 24 to trip 15 a fragmentary perspective of the rear portion of pedal 23,' as by the heel 2'I of the operator, so a tractor including said improvement; and Fig. 3 that should the bail I9 and implement A be in is an elevation of the power lift trip-rod which I earth working position such half revolution of employ, the clutch will raise them to clear the shovels In said drawing the numeral 5 indicates a from the ground surface, and when pressure on 20 tractor of well known construction including a the button is again momentarily applied to trip power take-off shaft 6 geared to the crank-shaft pedal 23 the clutch will make another half rev- 1, at 8, .so that it will be directly driven by the olution and thus cause the bail and implement engine, 1', and extending through the rear of to be returned to earth working condition. The

the tractor, its projecting end 9 being splined 0i' spring 26 after each such operation returns the 25 Otherwise arranged fOr Connecting thereto and trip-rod and arm 20 to normal position. As the to a drawn implement an vextension drive shaft power take-oil. shaft is constantly running so (not shown) in a common and well known manlong as the engine operates, the power lift clutch ner, said Splined end being DTM/@Glied by a Iemay be tripped at all times whether the tractor mOVable Shield l0 to avoid accidents. Near the is moving0r stationary, and which tripping may 30 end of the shaft Ii'a worm II iS provided, which be performed by han-d pressure on arm 2l if deengages a Worm-Wheel l2 mounted 0n Cranksired, as the trip mechanism is vsensitively assoshaft I3 in a casing I4, which casing enClOSeS oiated with the power lift and requires but quick the Worm and gear aS Well aS 9 Clutch l5 and slight pressure to perform the well known half is Secured t0 the tractor bolts I6, said revolution as commonly employed in connec- .W01`m, gear and Clutqh bemg'of Well klOWn con tion with agriculturalmachinery. The tripping Strucllon and Operatlon- @nd cqnstltutmg ajn m' operation is usually employed for raising the imtermittent or half-revolution trip common in the plement from Contact with obstructions in the aft 0f power hftsfield, making turns at the ends of rows, and while o osite end ivotall attached to an arm I8 redly mounterzi uporiya rocking bail I9 fastened Wha-.e the tractor 1S employed for other purpoes to the platform 5' of the tractor so that it with the Implement. may b? mmv?? and the ,lp' the implement attached thereto, as Ay may be rod locked in inoperative condition by inserting a pin through the leg 23, or other locking means 45 raised and lowered as desired. A control shaft 20 having an arm 2| extends into casing I 4 and may be GmPIOYGdOI' Preventlng-dOWnWa-Td actuating movements of the trip-rod.

' is provided with well known means for controlling the revolution of the clutch mechanism I5, I Claim aS 'my iIlVeIlOIli and to which arm a substantially U-shaped trip- 1. The combination, in a tractor, of an engine,

rod 22 is pivotally attached and extends downa power take-off shaft engaging with and driven 50 wardly through platform 5', underlapping the by the engine, a half-revolution power lift ensame, and its shorter leg 23 projecting upwardly gaging and actuated by the power take-olf shaft, through the platform, Fig. 3, to produce a pedal, and a trip-rod connected to the power lift and and preferably including a button 2 4, said leg extending downwardly therefrom through and 23 being perforated, at 25, to receive a pin, so underlapping a part of the tractor and terminat- 55 ing in an upwardly extending pedal member projecting through part of the tractor.

2. The combination, in a tractor, of an engine, a power take-oil' shaft engaging with and driven by the engine, a half revolution power lift engaging and actuated by the power take-off shaft, a trip-rod connected to the power lift and extending downwardly therefrom through and underlapping part of the tractor and terminating in an upwardly extending pedal, and yielding means on the trip-rod and abutting the tractor for controlling vertical movements of the trip-rod.

3. The combination, in a, tractor, of an engine, a power vtake-01T shaft engaging with and driven by the engine, an intermittent power lift engaging and actuated by the power take-off shaft, a

trip-rod connected to the power lift and extending downwardly therefrom and passing through an'd underlapping part of the tractor, an upwardly extending pedal forming part of the trip-rod,

and a spring on said rod for controlling its vertical movements.

4. The combination, in a tractor, of :an engine, a power take-off shaft engaging with and driven by the engine, a half-revolution power lift engaging and actuated by the power take-off shaft, a trip-rod connected to the power lift and movably mounted on the tractor, said rod terminating in a pedal vertically operable by pressure, and means for locking the pedal to the tractor to prevent actuation of the trip-rod.

DANIEL C. HEITSHU. 

